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Appendix L Biological Resources Assessment Report Jurisdictional Delineation Results of Burrowing Owl Surveys

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Appendix L Biological Resources Assessment Report Jurisdictional Delineation Results of Burrowing Owl Surveys APPENDIX L BIOLOGICAL RESOURCES ASSESSMENT REPORT JURISDICTIONAL DELINEATION RESULTS OF BURROWING OWL SURVEYS REVISED FINAL Biological Resources Assessment Report for Seville 4 Solar Project Imperial County, CA Prepared For: Prepared By: Ericsson-Grant, Inc. 5145 Avenida Encinas, Suite H 215 North 5th Street Carlsbad, California Redlands, CA 92374 92008 (909) 307-0046 (909) 307-0056 fax August 2017 THIS PAGE INTENTIONALLY LEFT BLANK. TABLE OF CONTENTS 1.0 Introduction ..................................................................................................... 1 1.1 Location and Setting ........................................................................................................... 1 1.2 Project Description .............................................................................................................. 1 1.3 Purpose .............................................................................................................................. 4 1.4 Special-Status Species Regulations ....................................................................................... 4 2.0 Methodology ..................................................................................................... 5 2.1 Literature Review ................................................................................................................ 5 2.2 Biological Resources Assessment ......................................................................................... 7 2.2.1 Flat-Tailed Horned Lizard Habitat Assessment ....................................................................... 7 3.0 Results .............................................................................................................. 8 3.1 Literature Review ................................................................................................................ 8 3.1.1 Special-Status Plants ........................................................................................................... 8 3.1.2 Special-Status Wildlife ....................................................................................................... 10 3.2 Biological Resources Assessment ....................................................................................... 11 3.2.1 Property Characteristics ..................................................................................................... 11 3.2.2 Vegetation Communities .................................................................................................... 11 3.2.3 Plants ............................................................................................................................... 17 3.2.4 Wildlife ............................................................................................................................. 17 3.2.5 Flat-Tailed Horned Lizard Habitat Assessment ..................................................................... 18 3.2.6 Raptors and Migratory Birds............................................................................................... 18 3.2.7 Wildlife Movement Corridors and Linkages .......................................................................... 19 4.0 Discussion .......................................................................................................19 4.1 Option 1 Biological Impacts ............................................................................................... 20 4.2 Option 2 Biological Impacts ............................................................................................... 21 4.3 Proposed Gen-tie Line Biological Impacts............................................................................ 21 5.0 Recommendations ..........................................................................................21 6.0 Certification ....................................................................................................22 7.0 Literature Cited...............................................................................................23 LIST OF FIGURES Figure 1. Project Vicinity ...................................................................................................................... 2 Figure 2. Project Location .................................................................................................................... 3 Figure 3A. Vegetation Communities Option 1 ...................................................................................... 12 Figure 3B. Vegetation Communities Option 2 ...................................................................................... 13 Figure 4. Idle agriculture within the western portion of the Project site ................................................ 14 Figure 5. Vegetation debris pile location within disturbed habitat ......................................................... 15 Figure 6. Mesquite series-disturbed habitat along the west side of the gen-tie line ................................ 16 Figure 7. Representative photograph of tamarisk thicket ..................................................................... 17 Figure 8. Inactive, unidentified raptor nest in an athel tamarisk along the proposed gen-tie .................. 19 LIST OF TABLES Table 1. CNPS Status Designations ..................................................................................................... 10 Table 2. Weather Conditions during the Survey................................................................................... 11 Table 3. Vegetation Community and Land Cover Type Acreages .......................................................... 14 LIST OF APPENDICES Appendix A: Plant Compendium Appendix B: Wildlife Compendium August 2017 i Biological Resources Assessment Report for 2017-145 Seville 4 Solar Project THIS PAGE INTENTIONALLY LEFT BLANK. 1.0 INTRODUCTION ECORP Consulting, Inc. (ECORP) conducted a biological resources assessment for the proposed Seville 4 Solar Project (Project) located in Imperial County, California. The biological resources assessment for the Project was conducted in support of permitting under the California Environmental Quality Act (CEQA) and for the purposes of determining the baseline biological conditions and to identify any biological constraints that would affect the site plan for the Project. The Project will be subject to county, state, and federal regulations regarding compliance with the Federal Endangered Species Act (ESA), California Endangered Species Act (CESA), Migratory Bird Treaty Act (MBTA), and California Fish and Game Code (FGC). 1.1 Location and Setting The Project is located approximately eight miles west of Highway 86 and immediately south of Highway 78 in Imperial County, California (Figure 1). The Project site is located within the Colorado Desert, which is a part of the larger Sonoran Desert. The Project site is bounded by idle agriculture to the west, and mostly undisturbed native habitat to the north, south, and east. Two existing solar sites are also located northwest of the Project site. Surrounding land uses consist of old agriculture, other solar developments, and open land. The Project site, as depicted on the United States Geological Survey (USGS) 7.5-minute Harpers Well and Borrego Mountain Southeast topographic quadrangles, lies within Section 25 of Township 12 South, Range 9 East (Figure 2). Elevation at the Project site is approximately 50 feet (ft) below mean sea level. 1.2 Project Description The Project proposes development of a portion of Imperial County Assessor Parcel 018-170- 057-000, Lot 8 of Tract Map No. 00988. Lot 8 was created as part of the major subdivision/tract map of the 2,440-acre Allegretti Farms property for the Seville Solar Farm Complex. Lot 8 is adjacent to the southern and eastern boundaries of Lot 3 which is being developed and known as the Seville 3 Solar Project (Figure 2). The Applicant, Titan Solar II LLC, proposes to develop approximately 156 or 174 acres (depending on the configuration chosen) of the 572.10 acres comprising Lot 8 in order to construct and operate an approximate 20-megawatt (MW) solar photovoltaic (PV) facility. The Project would require a Conditional Use Permit (CUP) in association with the proposed solar use as well as a Zoning Change and a General Plan Amendment (GPA). The Project would use the existing private access road extending south from Highway 78 to the existing Seville Solar Farm. The Project would include internal access roads and infrastructure similar to the adjacent Seville Solar Farm Complex (i.e., PV modules, inverters, internal transmission lines, security fence, etc.). The Project would connect to the existing substation via a tie-in (gen-tie line) at Lot 3 to an existing pole line that connects Seville 3 to the substation. This east-west line would align north along the west side of the north-south access road and co-locate on the same pole line that is being used for Seville 3. One or more fire water tank(s) capable of storing 20,000 gallons are also proposed on the site. August 2017 1 Biological Resources Assessment Report for 2017-145 Seville 4 Solar Project Size of printing extent and margins differs with printer settings, please adjust margins if necessary. MAP REQUIRES A MAPLEX LICENSE NOTE: This map is set up in NAD 1983 California Teale Albers. Please Change to Define Your Local State Plane or UTM Coordinate System. OR IDID R i v e r s i d e C o u n t y Joshua Tree !"^$ Cathedral National Park Reno UT Carson City City Sacramento !"c$ Palm
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